Traumatic Anserine Folliculosis: A Case Report With Review of Differential Diagnosis

Traumatic anserine folliculosis (TAF) is a less commonly reported entity, often affecting young males and associated with trauma. Clinical recognition and dermoscopy are beneficial to diagnose this condition and avoid invasive biopsies. Topical agents, such as retinoids and vitamin D analogs, have been used with good responses; however, the condition often relapses once therapy is discontinued. We discuss this entity, review differential diagnoses, and explore management options. TAF is a benign entity that can be diagnosed based on physical examination and dermoscopy, and familiarity with this entity is crucial to avoid unnecessary invasive biopsies.